A change from your Kimber to a Beretta will be quite different... Are you not happy with you SA Kimber? Usually people who are happy with a SA don't like transitioning to a DA/SA gun... The Beretta Cougar is supposedly a fine gun, I haven't heard too many complaints... You can do a look-up on a thread in this forum that we had not too long ago... There are a wide variety of .45 DA/SA guns out there... Sig 220 or 245, HK USP .45 full and compact size, Glock 21, 30 or 36 (when it shows up), etc., etc... Try to find a range where you can rent guns to try out the various models... The different brands will all feel different to you... And finding one that feels "right" in your hand should be a major factor in your decision...